Device for emptying garbage bins into garbage-collecting receptacles or carrying-off cars in dustproof manner



Nov. 1, 192.7.

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' P. HOLZMANN DEVICE FOR EMPTYING GARBAGE BINS INTO GARBAGE COLLECTING RECEPTACLES 0R CARRYING-OFF GARS 1N DUSTPROOF MANNER Filed Aug. 2. 1927 3 Sheets-Sheet 2 3 S t E e L e C h A s T P s E t C e E e `R a GRS NE I TN C.N EA LM ,MF CO o Nwm AT? Nm AADl MGN o Z012 LMS. mIMWn SCA .NFd .PIF DoM n G AN BI Rv.. AR GR A GC NR I YO T D.. m F E C I m ov. l, 1927 Patented Nov. l, i927.

PAUL HOLZMJNN, 0F ESSEN, GERMANY.

DEVlCE FOR EMPTYNG- GARBAGE BINS yNLO GARBAGE-COLLECTING RECEPTACLES OR CARRYING-GFF Cf.

Application filed August 2, 1927, Serial No.

This invention relates to a device for emptying garbage bins having flap-covers into a closed garbage collecting receptacle or into a closed garbage carrying-oft1 carin such a manner that no dust can escape. ln this invention the receptacle or car is provided with a hood located above the space intended to receive the garbage, and the.

hood is provided with a front plateA having an aperture corresponding to the size of the fiap-cover of the garbage bin, and with an inner cover. adapted to close said aperture from the'interior of said hood. rEllis cover is so shaped that it can receive the cover of the bin, and means are provided by which the two covers can be coupled with one another in such a manner that both are opened when the bin is turned and tipped into the said hood. The two covers assume practically a horizontal position when they are Within the hood. and in order to move them into this position and to retain them therein while the emptying proceeds, a plate is provided in the top of the hood and connected turnably with the covers and shiftably with the hood, in such a manner, that no dust can escape during the emptying of the bin. Besides, certain coupling means are provided.y all as shown in the drawings and 'described hereinafter.

The invention is illustrated diagrammatically and by way of example on the accompanying crawing on which it is shown applied to a garbage carrying-off car, and on which Figure l is a side-view of the device in connection with the top of a still closed garbage bin (lefthand side of the figure), Figure 2 is a` front-view of the device without the bin), Figure 3 a view similar to Fig. l, showing. however. the opened bin tipped into the device, and Figures t and 5 are details which are also fully dealt with hereinafter. y

On the drawings u (Fig. l) denotes the bin to be emptied into the car; o is the cover of the bin7 and c the hinge by which the cover and the body of the bin are connected with each other. Opposite the hinge c, the bin is provided with a horizontal rod s afiixed to the bin body by brackets s (Fig. l). The rod s serves for attaching the bin to hooks e provided at the car just in front of the hood A, bythe intermediary of which the garbage is guided into the interior of the-otherwise closed-car. Near the hooks DUSTPROOF MANNER.

$10,202, and in Germany September 9, 1925.

c a horizontal axle o is attached to the car body; this axle serves as hinge for a hoodcover a having an aperture, the size or diameter of which corresponds to the size or diameter of the cover lvof the garbage bin. That aperture can be closed from the in terior of the hood A by a cover Z hinged to an upper axle 0. serving also as hinge for a top-plate f which is, therefore, connected with the top of the cover d by means of said axle (o). In the position of the parts as shown inv Fig. l the plate f and the cover l lie about at right angles with respect to one another. The lateral edges of the top plate f contact with the side-walls of the hood, so that no dust can escape. The free end of the plate f extends through oppositely located horizontal slot-s of a tubular member g (Figs. l. land 5) located inthe upper rear corner of the hood and enclosing two rollers r r, between which the plate passes through, as in Fi 4f. The rollers r r are located in bearings affixed to the upper rear corners of the side-walls w of the hood; a (Fig. ll) are the trnnnions of the rollers r. The parts f and g fit closely so that no dust can escape. but nevertheless packings g1 (one at. thehood portion just over the tubular member f/ and the other at the plate f) may be provided in order to sec re perfect tightness.

The covers a and d are connected with each other in such a manner that l is turned from the position shown in Fig. 1 into the position shown in Fig. 3 when a is turned from the position shown in Fig. 1- into that shown in Fig. 3, in which it rests on abutment ledges and simultaneously therewith the plate f is also moved from the position shown in Fig; l into that shown in Fig. 3, the tubular member g with its rollers 1" being also turned.

The size and shape of the cover cl which pertains to the hood A is such that it can receive and enclose the cover o of the bin u. as shown in dotted lines in Fig. 3. Both covers must be coupled with each other, and for this purpose the cover o is provided with an upwardly extending lug 7L for which a cavity is provided in the cover 6l. The lug fL has a bore e' which is engaged by a locking pawl 7c arranged in the top of the hood near the axle 0. The pawl 7c is carried by the top plate f where there is provided a bearing for an axle n to which said pawl is affixed. The axle n extends to one of the side walls of the hood where it is provided with an arm p provided in turn with a roller p bearing normally upon a curved projection g attached to the respective side-wall. `When the roller 29 of the arm p isrbearing on the projection g, as in Fig. l, the pawl 7c is in lifted position so that the lug h of the bin cover o can enter into the cavity provided for its reception, as stated.

l/Vhen then, in order to empty a filled garbage bin, the respective bin is coupled with the hooks e and is turned on the. axle s, the bin cover v will pass thrmigh the large aperture of the front plate a of the hood into the cover d. its the movement of the garbage bin is continued, the cover d is moved inwardly on its axis 7), which by reason of the pivotal mounting of the cover closure d and top plate f on the upper axle 0 tends to swing the cover o of the bin away from the same, as illustrated in nig. 3. ln this initial movement the roll p of the arm p rides oil' of the projection or lug g, so that the arm operates'by gravit-y to turn the shaft n and thereby move the pawl 7c into the cavity in the cover l and through the bore t' in the lug ,7L of the cover o. The covers Z and o are thus secured together and move as a unit until the return of the parts causes the lug c to be displaced from the locking cooperation described by the roller 79 riding onto the curved surface of the projection Q.

On the further movement of the bin cover o also the cover CZ is moved, i. e. turned on its axle 0, but owing to the coupling between the lug 7i and the pawl 7c, the covers o and Z are moved simultaneously, viz lifted so as to assume the position shown in dotted lines in Fig. 3, in which the bin is nearly completely turned upside down, at least so muchv that the entire amount of garbage contained ther-ein falls down into the collecting space of the garbage car. v

l/ihen the bin is moved back into its former position, also the other moved parte reassume their former positions. First these other parts are moved together with the bin, and as soon as the roller of the arm p contacts again with the projection l the coupling between the pawl and the lng /z is broken, and now the bin can be moved separately until it arrives again in the posi-- tion shown in Fig` l in which it can be removed from the cai'.

Concerning merely the movements of the plate and the tubularmember g relatively to one another these two members would suflice for the purpose in view, but the friction between the plate and the edges of the slots of the tube g would be very great, as would be, therefore, also the wear and tear. This drawback is completely done away with by the rollers 1 which convert the sliding fricprising, in combination with a hood on the top of the space intended to receive the garbage, a horizontal tubular member located in the upper rear corner of the hood and having oppositely located slots; a pair of horizontal rollers arranged in said tubular member and leaving a gap between them; a plate extending with one end through said slots and said gap and extending wit-hits other end to the front of said hood; an inwardly vaulted cover closing the hood front e and being movably connected with the last mentioned end of said plate; a hood front wall located in front of said cover and having an aperture adapted to receive the cover of a garbage bin and being adapted to be turned inwardly and downwardly together with the bin when this 1s being emptied, and

means for coupling the bin cover and the hood cover with one another, substantially as set forth.

2. A device for emptying garbage bins into garbage collecting receptacles or carrying-olf cars in dust-proof manner, comprising, in combination with a hood on the top of the space intended to receive the garbage, a horizontal tubular member located in the upper rear corner of the hood and having oppositely located slots; a pair of horizontal rollers arranged in said'tubular member and leaving a gap between them; a plate extending with one end through said slots and said gap and extending with its other end to the front f said hood; an inwardly vaulted cover closing the hood front and being movably connected with the last mentionedL end of said plate; a hood front wall located in front of said cover an l having an aperture adapted to receive the cover of a garbage bin and being adapted to be turned inwardly and downwardly together with the bin when this being emptied; an axle attached to the bottom surface of the said plate. a pawl affixed to the middle portion of said axle and another arm aflixed to saine; a lug provided at the hood cover and being adapted lto Contact with said arm so as to turn it thereby; and a lug provided at the cover of the bin intended to co-operate with the hood` and adapted to co-operate with said pawl, substantially as set forth.

1n testimony whereof i aiir my signature.

PAUL HOLZMANN. 

